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The message Archive detects that page is corrupt indicates that page validation failed.

During an archive, the database server validates every page before writing it to the archive device. This validation checks that the elements on the page are consistent with the expected values. When a page fails this validation, a message similar to the following is written to the online.log file:

15:06:37  Assert Failed: Archive detects that page 0xc00021 is corrupt.
15:06:37  IBM Informix Dynamic Server Version 9.40.UC1
15:06:37   Who: Session(25, informix@cronus, 67612, 1085259772)
                Thread(50, arcbackup1, 40acf758, 4)
                File: rsarcbu.c Line: 2549
15:06:37  stack trace for pid 67367 written to /tmp/af.41ad7b9
15:06:37   See Also: /tmp/af.41ad7b9

16:27:49 Assert Warning: Archive detects that page 1:10164 is corrupt. 
16:27:49 IBM Informix Dynamic Server Version 11.50.FC7
16:27:49 Who: Session(5, informix@cronus, 23467, 10a921048)
Thread(40, arcbackup1, 10a8e8ae8, 1)
File: rsarcbu.c Line: 2915
16:27:49 stack trace for pid 23358 written to /tmp/af.41043f4
16:27:49 See Also: /tmp/af.41043f4
16:27:49 Archive detects that page 1:10164 is corrupt.
16:27:50 Archive on rootdbs Completed with 1 corrupted pages detected.

When you receive this message, identify which table the corrupt page belongs to by examining the output of the oncheck –pe command. (해당 정보는 sysmaster:sysextents 테이블에서도 확인할 수 있습니다.) To determine the extent of the corruption, execute the oncheck –cID command for that table.

A corrupt page is saved onto the backup media. During a restore, the corrupt page is returned in its corrupt form. No errors messages are written to the online.log when corrupt pages are restored, only when they are archived.

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